flows SE to Chicken Creek, 52 mi. SW of Eagle, Yukon-Tanana High.
Prospectors' name obtained in 1898 by E. C. Barnard, U.S. Geological Survey (USGS).
Dennison Fork, Mosquito Fork Fortymile River, Myers Fork, North Fork Fortymile River, South Fork Fortymile River, West Fork Dennison Fork,
Streams:Alder Creek, Atwater Creek, Buckskin Creek, Bullion Creek, Butte Creek, Chicken Creek, Eagle Creek, Fortyfive Pup, Franklin Creek, Ingle Creek, Left Fork Chicken Creek, Lilliwig Creek, Lost Chicken Creek, Napoleon Creek, Old Man Creek, Soda Creek, Stonehouse Creek, Switch Creek, Tin Kettle Creek, Uhler Creek, Voss Creek, Walker Fork, Wall Street Creek, Wilson Creek, Wilson Creek,